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How are disposable medical masks produced?

Views:442     Author:Site Editor     Publish Time: 2021-02-16      Origin:Site


In this new coronavirus epidemic, masks are currently the most scarce. Even in major physical stores and e-commerce platforms, they are hard to find. Many people worry about not being able to buy masks. With the news of the resumption of orders, large companies will usher in a work boom, and masks are even harder to find. The good news is that many companies have changed their production lines and added a disposable face mask making machine. Now, let us look at the materials and production process of disposable medical masks. 

 

 14-2-disposable face mask making machine


Material and structure of disposable medical masks

Ordinary medical masks consist of three layers, the inner and outer layers are spunbonded non woven sheets, and the middle is a layer of meltblown non-woven fabrics. The outer non-woven fabric can prevent droplets, the inner non-woven fabric can absorb moisture, and the middle layer is a filter layer, which has an antibacterial effect of 99.99%. Some larger particles can be filtered out through the mechanical screen of the filter material, just like we use a sieve to screen objects. Part of the particles pass through the mesh channel of the filter material, and the particles hit the fibers and are adsorbed by molecular gravity. In addition, during the Brownian diffusion process, some particles with small-scale and low-velocity particles are adsorbed by the fibers. In addition, the electrostatic effect of fibers can also adsorb particles. This is why medical masks have better antibacterial effects than ordinary masks we usually wear. Back to the structure, we can find that the main material of medical masks is pp spunbond non woven felt fabric.

 

 

So what is non woven textile?

The so-called non-woven fabrics are not bonded by warp and weft, but by physical methods. It is a non woven polyester fabric formed by air or mechanical mesh, and then reinforced by hydraulic entanglement, needle punching or hot rolling. To put it simply, it's like directly tangling the cotton structure and consolidating it together to form a flat cloth. Our ordinary handbags are made of non-woven fabric materials. Spunbond nonwovens and meltblown nonwovens are two types of nonwovens formed by different processing technologies. The main materials of pp spunbond nonwoven fabrics are polyester and polypropylene, which are formed by spunbonding. The melt blown cloth is mainly made of polypropylene and formed by the melt blow method. Melt blown cloth has good filtering and shielding performance.

 

 

Production process of disposable medical masks

Using raw materials and equipment, the production of masks has become easier. First, the meltblown fabric and non-woven fabric are divided into small rolls, and then they are placed on the production line. First, it is necessary to laminate three layers of non woven textiles together and make them into the mask body through high frequency welding.

 

The mask adopts a laminated structure, so the mask and nose can be completely covered after being pulled out. This requires a machine to fold the mask. The disposable mask making machine uses 3 adjustable slopes to preset small bevel angles. The cloth is gradually narrowed by the inclined surface to fold out the folded structure, then compact the folded structure.

 

In this way, one side of the non woven cloth is matched with the metal wire, and then stitched by crimping. Then, put the headphone cord on the edge of the mask, and then press the edge tightly. After passing the sterilization inspection, it enters the market.


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